1565056345 has 16 divisors (see below), whose sum is σ = 1928152512. Its totient is φ = 1219017280.

The previous prime is 1565056333. The next prime is 1565056351. The reversal of 1565056345 is 5436505651.

It is not a de Polignac number, because 1565056345 - 2¹³ = 1565048153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1565056298 and 1565056307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12174 + ... + 57256.

It is an arithmetic number, because the mean of its divisors is an integer number (120509532).

Almost surely, 2^1565056345 is an apocalyptic number.

It is an amenable number.

1565056345 is a deficient number, since it is larger than the sum of its proper divisors (363096167).

1565056345 is a wasteful number, since it uses less digits than its factorization.

1565056345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45272.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 1565056345 is about 39560.7930279462. The cubic root of 1565056345 is about 1161.0296903972.

The spelling of 1565056345 in words is "one billion, five hundred sixty-five million, fifty-six thousand, three hundred forty-five".